Height adjustable desk



FIG. 1 is a front perspective view of the claimed design;

FIG. 2 is a back perspective view of the claimed design;

FIG. 3 is a left side view of the claimed design; and,

FIG. 4 is a front perspective view of the claimed design shown in anenvironment of use.

The broken lines illustrate portions of the height adjustable desk andenvironment that form no part of the claimed design.

CLAIM The ornamental design for a height adjustable desk, as shown and described. 